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Finding the Fourth Proportional to 348,302.52, 522,686.79 and 126,686.52

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Solution

The fourth proportional to 348,302.52, 522,686.79 and 126,686.52 is: 190,114.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,302.52 : 522,686.79 = 126,686.52 : x
  2. Step 2: Convert to fraction form
    348,302.52/522,686.79 = 126,686.52/x
  3. Step 3: Cross multiply
    348,302.52x = 522,686.79 × 126,686.52
  4. Step 4: Simplify right side
    348,302.52x = 66,217,370,475.07
  5. Step 5: Solve for x
    x = 66,217,370,475.07/348,302.52
  6. Step 6: Final answer
    x = 190,114.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.